Sodium borohydride

Base Information

• Chemical Name: Sodium borohydride
• CAS No.: 16940-66-2
• Molecular Formula: NaBH4
• Molecular Weight: 37.8325
• Hs Code.: 2850.00
• European Community (EC) Number: 241-004-4
• ICSC Number: 1670
• UN Number: 1426
• Wikipedia: Sodium borohydride,Sodium_borohydride
• Wikidata: Q407895
• Mol file: 16940-66-2.mol

Synonyms:sodium borohydrate;sodium borohydride;sodium borohydride, 3H-labeled;sodium borotritide;sodium tetrahydroborate

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Chemical Property of Sodium borohydride

Chemical Property:

• Appearance/Colour: white solid
• Vapor Pressure: 86.91mmHg at 25°C
• Melting Point: >300 °C (dec.)(lit.)
• Boiling Point: 500oC
• Flash Point: 69 °C
• PSA: 0.00000
• Density: 1.035 g/mL at 25 °C
• LogP: -1.45160
• Water Solubility.: 550 g/L (25℃)
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 1
• Rotatable Bond Count: 0
• Exact Mass: 38.0303746
• Heavy Atom Count: 2
• Complexity: 2
• Transport DOT Label: Dangerous When Wet

Purity/Quality:

Safty Information:

• Pictogram(s): F,T
• Hazard Codes: F:Flammable;;
• Statements: R15:; R23/24/25:; R34:
• Safety Statements: S22:; S26:; S36/37/39:; S43A:; S45:

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Metals -> Metal Hydrides
• Canonical SMILES: [BH4-].[Na+]
• Inhalation Risk: A harmful concentration of airborne particles can be reached quickly when dispersed.
• Effects of Short Term Exposure: The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion.

Technology Process of Sodium borohydride

There total 176 articles about Sodium borohydride which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 72.0%

sodium tetrahydroxyborate + Mg17Al12 → aluminum oxide (1333-84-2,1344-28-1) + sodium tetrahydroborate (16940-66-2)

Guidance literature:

for 20h; Milling; Inert atmosphere;

DOI:10.1039/c9ta00769e

Reference yield:

Diammoniak-diboran + sodium (7440-23-5) → ammonia borane (108203-18-5) + sodium tetrahydroborate (16940-66-2) + hydrogen (1333-74-0)

Guidance literature:

In ammonia; -78°C;

Reference yield:

BH(NH3)3(2+)*2BH4(1-)={BH(NH3)3}{BH4}2 + sodium (7440-23-5) → sodium tetrahydroborate (16940-66-2) + diaminoborane (18447-53-5) + hydrogen (1333-74-0)

Guidance literature:

In ammonia; byproducts: NH3; B2H6 reacts as amine;

DOI:10.1021/ja01534a005

upstream raw materials:

Trimethyl borate

sodium metaborate

hydrogen

sodium hydroxide

Downstream raw materials:

hydrogen

sodium iodide

diborane

(4-methyl-1,3-thiazol-5-yl)methanol

Refernces

• 1、 Hough, W. V.,Edwards, L. J.,McElroy, A. D.. "". . p. 689. Retrieved 1956.
• 2、 Li,Liu,Zhu,Morigasaki,Suda. "NaBH4 formation mechanism by reaction of sodium borate with Mg and H2". . p. 311 - 316. Retrieved 2007.
• 3、 Suda,Morigasaki,Iwase,Li. "Production of sodium borohydride by using dynamic behaviors of protide at the extreme surface of magnesium particles". . p. 643 - 647. Retrieved 2005.
• 4、 Huang, Zhenguo,Liu, Jiangwen,Ouyang, Liuzhang,Wang, Hui,Zhong, Hao,Zhu, Min,Zhu, Yongyang. "Breaking the Passivation: Sodium Borohydride Synthesis by Reacting Hydrated Borax with Aluminum". . p. 9087 - 9093. Retrieved 2021.
• 5、 Shu, Chenhua,Sun, Tonghua,Jia, Jinping,Lou, Ziyang,Shen, Yafei. "A coal desulfurization process via sodium metaborate electroreduction with pulse voltage using a boron-doped diamond thin film electrode". . p. 1476 - 1485. Retrieved 2013.
• 6、 Kasper, J. S.,McCarty, L. V.,Newkirk, A. E.. "". . p. 2583. Retrieved 1949.
• 7、 M?ller, Kasper T.,Grinderslev, Jakob B.,Jensen, Torben R.. "A NaAlH4-Ca(BH4)2 composite system for hydrogen storage". . p. 497 - 501. Retrieved 2017.
• 8、 Brown, H. C.,Mead, E. J.,Shoaf, C. J.. "". . p. 3616 - 3620. Retrieved 1956.
• 9、 Zhu, Qi-Yong,Zhu, Chuan-Gao,Wang, Feng-Wu,Wei, Yi-Jun. "Preparation of sodium borohydride by copper electrolysis". . p. 7749 - 7752. Retrieved 2013.
• 10、 Richter, Bo,Grinderslev, Jakob B.,M?ller, Kasper T.,Paskevicius, Mark,Jensen, Torben R.. "From Metal Hydrides to Metal Borohydrides". . p. 10768 - 10780. Retrieved 2018.